The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 07, 2012
Filed:
Oct. 20, 2009
Yong Hae Kim, Daejeon, KR;
Seung Youl Kang, Daejeon, KR;
Myung Lae Lee, Daejeon, KR;
Taehyoung Zyung, Daejeon, KR;
Jong-moo Lee, Daejeon, KR;
Sang Hoon Cheon, Daejeon, KR;
Yong Hae Kim, Daejeon, KR;
Seung Youl Kang, Daejeon, KR;
Myung Lae Lee, Daejeon, KR;
Taehyoung Zyung, Daejeon, KR;
Jong-Moo Lee, Daejeon, KR;
Sang Hoon Cheon, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
Provided is a wireless power transmission device. The wireless power transmission device includes a power coil in which a high frequency current is applied, a transmission coil in which the high frequency current is induced by magnetic induction, the transmission coil configured to generate an non-radiative electromagnetic wave when the transmission coil has the same resonant frequency as an at least one external target device, and a resonant frequency regulator configured to regulate the resonant frequency of the transmission coil. The wireless power transmission device can transmit the power when it has the same resonant frequency as the target device. Therefore, the overheating due to an eddy current may not occur, and the design may be easily varied.